Solid wall insulation · Devon
Solid wall insulation in Barnstaple
Need solid wall insulation in Barnstaple? Tell us about the property and we'll arrange a free survey and a written quote. For solid-walled homes in Barnstaple, we check wall thickness and age first to confirm there's no cavity to fill.
- Free survey in EX31 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Barnstaple
Postcode, service and a phone number is all we need.
Part of every quote
- Solid walls can lose heat roughly twice as fast as an insulated cavity wall
- Both can be done in stages, elevation by elevation or room by room
- In England and Wales, Building Regulations apply when more than half of a wall is treated
- Breathable options for stone and lime-mortared walls
Barnstaple: walls, weather and approvals
We cover Barnstaple and nearby Bideford, Exeter and Taunton. Barnstaple sits around 49 miles from Plymouth. The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Parts of Devon fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
For Barnstaple homeowners weighing external against internal insulation, the survey sets out both with prices.
- Postcode district
- EX31
- County or area
- Devon
- Nation
- England
- Nearby
- Bideford, Exeter, Taunton, Newton Abbot
Permissions in England
Planning in Barnstaple follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.
What does solid wall insulation cost?
External systems run at roughly £105–£210 per m² of wall depending on the board and finish. Internal insulation is roughly £75–£130 per m², plus the cost of moving radiators, sockets and kitchen units.
Solid wall insulation prices in Barnstaple
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
What happens next
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Solid wall insulation in Barnstaple: questions
Can I get a grant for solid wall insulation?
Some schemes cover it for eligible households — for example ECO4 until 31 December 2026, Home Energy Scotland's grant and loan, Wales' Warm Homes Nest and NI's Affordable Warmth Scheme. Each has its own eligibility and installer rules; see our grants guide.
Is solid wall insulation worth it?
For many solid-walled homes it's one of the biggest single improvements to comfort, because the walls are often the largest heat-loss area. Savings depend on the home and heating, so we don't promise a figure.
Does solid wall insulation cause condensation?
It can if detailed poorly, particularly internally. A condensation risk check for the proposed build-up and careful detailing at joists, reveals and corners avoid it.
Do you cover Barnstaple?
Yes — we survey and quote solid wall insulation in Barnstaple (EX31) and nearby Bideford, Exeter and Taunton, with a fixed written price before any work starts.